RS-X Toys sneakers Engineered with PUMA’s patented RS Technology on the midsole, these RS-X Toys sneakers are a modern rendition of the retro-inspired design. Their leather and suede overlays with an embossed textile heel piece provide the right mix of style, versatility and comfort. Imported Composition Sole: Rubber 100% Outer: Thermoplastic Polyurethane (TPU) 100%, Fabric 100% Lining: Fabric 100%